Method for manufacturing construction material and structure thereof

ABSTRACT

Method for manufacturing construction material and structure thereof. The method includes steps of: selecting at least three raw wooden materials; cutting the raw wooden materials along fiber direction thereof to form cutting faces with predetermined length and shape; and arranging the raw wooden materials side by side and connecting the corresponding cutting faces of the raw wooden materials with each other to sandwich a middle raw wooden material between a left and a right wooden raw materials. The middle and left and right raw wooden materials are respectively taken from different trees or the tree from which the middle wooden material is taken is different from the tree from which the left and right raw wooden materials are taken. Alternatively, the middle and left and right raw wooden materials are respectively taken from the same tree, while the growth layer of the middle wooden material does not correspond to the growth layers of the left and right raw wooden materials in the same position. Accordingly, the structure has excellent load capacity in a direction normal to the fiber direction and is not subject to breakage or deformation.

BACKGROUND OF THE INVENTION

[0001] The present invention is related to a method for manufacturing construction material and a structure thereof; and more particularly to a construction material made of raw wooden material.

[0002] Forests are natural air regulators providing oxygen for human being. In addition, the forests serve to regulate temperature and maintain water and soil and balance ecologic environment. However, due to over-hack of trees, the area of the green forests has been gradually reduced. Therefore, it is necessary to limit the hack of trees so as to protect the disappearing forests.

[0003] It is known that raw wooden materials are taken from trees and processed to form materials for manufacturing furniture or construction. The wooden material is often cut into timbers as elongated bars for manufacturing stairs rails, general rails, curtain hanging beams, clothes hanging beams, etc. such elongated timber generally has at least two fixed points (support points). After a period of use, due to the timber's own weight or the weight of the hung article, the elongated timber tends to deform or even break. Moreover, after cut, the remainder material is generally discarded without being reused. This leads to waste of raw wooden material.

SUMMARY OF THE INVENTION

[0004] It is therefore a primary object of the present invention to provide a method for manufacturing construction material. The structure of the construction material has better load capacity and longer using life.

[0005] It is a further object of the present invention to provide the above method in which after cut, the remainder material of the raw wooden material can be reused to meet the requirement for environment protection.

[0006] According to the above objects, the method includes steps of: selecting at least three raw wooden materials; cutting the raw wooden materials along fiber direction thereof to form cutting faces with predetermined length and shape; and arranging the raw wooden materials side by side and connecting the corresponding cutting faces of the raw wooden materials with each other to sandwich a middle raw wooden material between a left and a right wooden raw materials.

[0007] The present invention can be best understood through the following description and accompanying drawings wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

[0008]FIG. 1 is a flow chart of a first preferred embodiment of the manufacturing method of the present invention;

[0009]FIGS. 2 and 3 are perspective views showing the structure of a second embodiment of the present invention, in which the raw wooden materials are taken from two different trees; and

[0010] FIGS. 4 to 6 are perspective views showing the structure of a third embodiment of the present invention, in which the raw wooden materials are taken from the same tree.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Please refer to FIG. 1. The method for manufacturing construction material of the present invention includes steps of:

[0012] step 101: selecting at least three raw wooden materials 12, 14, 16, the raw wooden materials 12, 14, 16 being taken from different trees;

[0013] step 102: cutting the raw wooden materials 12, 14, 16 along fiber direction thereof to form cutting faces with predetermined length and shape, at least one cutting face of each of the raw wooden materials 12, 14, 16 corresponding to at least one cutting face of the other in shape; and

[0014] step 103: arranging the raw wooden materials 12, 14, 16 side by side and connecting the corresponding cutting faces of the raw wooden materials 12, 14, 16 with each other to sandwich a middle raw wooden material between a left and a right wooden raw materials.

[0015] The middle raw wooden material 14 and the left and right wooden raw materials 12, 16 are not taken from the same tree. Therefore, the raw wooden materials 12, 14, 16 have different growth layers. Accordingly, when the sandwich structure suffers a force in a direction normal to the fiber direction, the sandwich will not be damaged on the same face. Therefore, the structure of the present invention has excellent load capacity.

[0016] Alternatively, in step 101, the raw wooden materials 12, 14, 16 are taken from two different trees. In step 103, the tree from which the middle wooden material 14 is taken is different from the tree from which the left and right raw wooden materials 12, 16 are taken. This can also achieve the same function of the present invention. The structure formed by the above method is shown in FIGS. 2 and 3.

[0017] Still alternatively, in step 101, the raw wooden materials 12, 14, 16 are taken from the same tree. In step 103, when connected, the growth layer of the middle wooden material 14 does not correspond to the growth layers of the left and right raw wooden materials 12, 16 in the same position. For example, the middle wooden material 14 is 180 degrees turned. This can also achieve the same function of the present invention. The structure formed by this method is shown in FIGS. 4 to 6.

[0018] The present invention has the following advantages:

[0019] 1. The structure of the construction material has excellent load capacity.

[0020] 2. The structure of the construction material has longer using life.

[0021] 3. After cut, the remainder material of the raw wooden material can be reused to meet the requirement for environment protection.

[0022] 4. In case the structure is broken due to external force, there is no too sharp damage face. This minimizes danger of impalement.

[0023] In step 103, the raw wooden materials 12, 14, 16 are connected by means of adhesion.

[0024] The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention. 

What is claimed is:
 1. Method for manufacturing construction material, comprising steps of: A. selecting at least three raw wooden materials, the raw wooden materials being taken from different trees; B. cutting the raw wooden materials along fiber direction thereof to form cutting faces with predetermined length and shape, at least one cutting face of each of the raw wooden materials corresponding to at least one cutting face of the other in shape; and C. arranging the raw wooden materials side by side and connecting the corresponding cutting faces of the raw wooden materials with each other to sandwich a middle raw wooden material between a left and a right wooden raw materials.
 2. Method for manufacturing construction material, comprising steps of: A. selecting at least three raw wooden materials, the raw wooden materials being taken from two different trees; B. cutting the raw wooden materials along fiber direction thereof to form cutting faces with predetermined length and shape, at least one cutting face of each of the raw wooden materials corresponding to at least one cutting face of the other in shape; and C. arranging the raw wooden materials side by side and connecting the corresponding cutting faces of the raw wooden materials with each other to sandwich a middle raw wooden material between a left and a right wooden raw materials. The tree from which the middle wooden material is taken is different from the tree from which the left and right raw wooden materials are taken.
 3. Method for manufacturing construction material, comprising steps of: A. selecting at least three raw wooden materials, the raw wooden materials being taken from the same tree; B. cutting the raw wooden materials along fiber direction thereof to form cutting faces with predetermined length and shape, at least one cutting face of each of the raw wooden materials corresponding to at least one cutting face of the other in shape; and C. arranging the raw wooden materials side by side and connecting the corresponding cutting faces of the raw wooden materials with each other to sandwich a middle raw wooden material between a left and a right wooden raw materials. When connected, the growth layer of the middle wooden material does not correspond to the growth layers of the left and right raw wooden materials in the same position.
 4. Method as claimed in claim 1, wherein the raw wooden materials are connected by means of adhesion.
 5. Method as claimed in claim 2, wherein the raw wooden materials are connected by means of adhesion.
 6. Method as claimed in claim 3, wherein the raw wooden materials are connected by means of adhesion.
 7. Structure of construction material comprising a middle wooden raw material and a left and a right raw wooden materials connected with opposite two sides of the middle raw wooden material, wherein: the middle raw wooden material is cut along fiber direction thereof to form cutting faces with predetermined length and shape; and the left and right middle raw wooden materials are cut along fiber direction thereof to form cutting faces with predetermined length and shape, each of the left and right raw wooden materials having a cutting face with a shape corresponding to the shape of any cutting face of the middle raw wooden material, the corresponding cutting faces of the left and right raw wooden materials being fixedly connected with two opposite cutting faces of the middle raw wooden material, said structure being characterized in that the middle and left and right raw wooden materials are taken from different trees.
 8. Structure of construction material comprising a middle wooden raw material and a left and a right raw wooden materials connected with opposite two sides of the middle raw wooden material, wherein: the middle raw wooden material is cut along fiber direction thereof to form cutting faces with predetermined length and shape; and the left and right middle raw wooden materials are cut along fiber direction thereof to form cutting faces with predetermined length and shape, each of the left and right raw wooden materials having a cutting face with a shape corresponding to the shape of any cutting face of the middle raw wooden material, the corresponding cutting faces of the left and right raw wooden materials being fixedly connected with two opposite cutting faces of the middle raw wooden material, wherein the tree from which the middle wooden material is taken is different from the tree from which the left and right raw wooden materials are taken.
 9. Structure of construction material comprising a middle wooden raw material and a left and a right raw wooden materials connected with opposite two sides of the middle raw wooden material, wherein: the middle raw wooden material is cut along fiber direction thereof to form cutting faces with predetermined length and shape; and the left and right middle raw wooden materials are cut along fiber direction thereof to form cutting faces with predetermined length and shape, each of the left and right raw wooden materials having a cutting face with a shape corresponding to the shape of any cutting face of the middle raw wooden material, the corresponding cutting faces of the left and right raw wooden materials being fixedly connected with two opposite cutting faces of the middle raw wooden material, wherein the tree from which the middle wooden material is taken is different from the tree from which the left and right raw wooden materials are taken, wherein the middle and left and right raw wooden materials are taken from the same tree, while when connected, the growth layer of the middle wooden material does not correspond to the growth layers of the left and right raw wooden materials in the same position.
 10. Structure as claimed in claim 7, wherein the middle raw wooden material is fixedly connected with the left and right raw wooden materials by means of adhesion.
 11. Structure as claimed in claim 8, wherein the middle raw wooden material is fixedly connected with the left and right raw wooden materials by means of adhesion.
 12. Structure as claimed in claim 9, wherein the middle raw wooden material is fixedly connected with the left and right raw wooden materials by means of adhesion. 